Technical conditions for plates of SA738GrB Used For AP1000 Nuclear power plant SA738GrB manufacturer from China Gloria Steel

Technical conditions for plates of SA738GrB Used For AP1000 Nuclear power plant

Price:	2000.0~5000.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Guangdong, China (Mainland)


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Product Detail

Model No.: SA738GrB

Production Capacity: 3000~5000T

Delivery Date: 30 days

Means of Transport: Ocean

Packing: Standard seaworthy export p...

The technical conditions apply to plates of S275J0 with thickness not more than 150mm. (8mm-150mm)

Technical conditions for plates of SA738GrB Used For AP1000 Nuclear power plant

1. Scope

The technical conditions apply to plates of SA738GrB Used For Nuclear power plant AP1000 project with thickness range 8mm-64mm.

2. Adopt standard:

ASME SA738/SA738M Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel, for Moderate and Lower Temperature Service

ASME SA20/SA20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels

ASME SA370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products

3. Dimension, Shape, Weight and Permissible Deviation

The dimension, shape, weight and permissible deviation shall meet the requirements of ASME SA20/SA20M.

4. Technical conditions

4.1 Chemical composition

The chemical composition of plates shall be accordance with the following table 1.

Table 1 Chemical composition

Type	C	Si	Mn	P	S	Mo
Ladle analysis	Max 0.20	0.15- 0.55	0.90- 1.50	Max 0.030	Max 0.030	Max 0.20
Product analysis	Max 0.20	0.13- 0.60	0.84- 1.60	Max 0.030	Max 0.030	Max 0.21
Type	Cu	Cr	V	Nb	Ni	Nb+V
Ladle analysis	Max 0.35	Max 0.30	Max 0.07	Max 0.04	Max 0.60	Max 0.08
Product analysis	Max 0.38	Max 0.30	Max 0.08	Max 0.05	Max 0.63	Max 0.10

4.2 Steel making process: EAF+LF/VD

4.3 Tensile properties

The SWHT properties of SA738GrB shall meet the requirement as table 2&3.

Table 2 Tensile properties

Test Temp.	Yield strength MPa	Tensile strength MPa	Elongation %
Room temp.	Min 415	585-705	Min 20

4.4 Impact properties

Impact test in the longitudinal and transverse for plates of SA738GrB shall meet the requirements per table 3.

Table 3 Impact properties

Transverse test at -18℃
Thickness	Average impact energy
=<16	Actual measured value
>16<25	Min 20J, single value min 15J
>25<38	Min 25J, single value min 20J
>38<64	Min 35J, single value min 30J

4.5 Surface quality

The surface quality of plates shall be accordance with ASTM A20/A20M.

4.6 Ultrasonic inspection

Plates shall be ultrasonic inspected per ASTM A578/A578M level A.

4.7 Test method and inspection rules

Test items, sampling quantity, sampling method and test method shall conform to table 4.

Table 4 Test items for plates

Test item	Quantity, Piece	Sampling method	Test method	Sampling conditions
Ladle analysis	1 (per furnace)	SA20/SA20M	ASTM A751	/
Product analysis	1 (per rolled pc)	SA20/SA20M	ASTM A751
Tensile test	1 (per rolled pc)	SA20/SA20M	ASTM A370	SWHT
Charpy-V impact test at 0C	3 (per rolled pc)	SA20/SA20M	ASTM A370
Ultrasonic test	Each product pc	ASTM A578/A578M